Hopes were high for this funky, nasty-looking Yuletide tale of Grinchy horror from Finnish advertising director Jalmari Helander, developed from his cult short films. The idea is that Korvatunturi mountain in Lapland is in fact the burial mound of Santa, who is now emerging from the grave. He is not the jolly figure of legend, but a satanic force, something between the Pied Piper and King Herod, who sadistically attacks and kills children. For a while, it's a genuinely funny and unnerving experience, promising a lively payoff, but the ending is anti-climactic and the meaning of the title is only revealed in the laborious, jokey ending.